Support bidirectional requests over gateway
This commit is contained in:
parent
9034ef7c6b
commit
4b6f7d408e
125
socket.go
125
socket.go
@ -19,10 +19,13 @@
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package main
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import (
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"bytes"
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"context"
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"errors"
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"io"
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"net"
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"net/http"
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"net/url"
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"os"
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"path/filepath"
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"strings"
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@ -31,6 +34,7 @@ import (
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"github.com/google/uuid"
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"github.com/rs/zerolog/log"
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"github.com/smallnest/rpcx/server"
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"github.com/smallnest/rpcx/share"
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"github.com/vmihailenco/msgpack/v5"
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"go.arsenm.dev/infinitime"
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"go.arsenm.dev/infinitime/blefs"
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@ -46,7 +50,7 @@ var (
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ErrDFUInvalidFile = errors.New("provided file is invalid for given upgrade type")
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ErrDFUNotEnoughFiles = errors.New("not enough files provided for given upgrade type")
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ErrDFUInvalidUpgType = errors.New("invalid upgrade type")
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ErrRPCXUsingGateway = errors.New("bidirectional requests are unsupported over gateway")
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ErrRPCXNoReturnURL = errors.New("bidirectional requests over gateway require a returnURL field in the metadata")
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)
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type DoneMap map[string]chan struct{}
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@ -137,11 +141,11 @@ func (i *ITD) HeartRate(_ context.Context, _ none, out *uint8) error {
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}
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func (i *ITD) WatchHeartRate(ctx context.Context, _ none, out *string) error {
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// Get client's connection
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clientConn, ok := ctx.Value(server.RemoteConnContextKey).(net.Conn)
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// Get client message sender
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msgSender, ok := getMsgSender(ctx, i.srv)
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// If user is using gateway, the client connection will not be available
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if !ok {
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return ErrRPCXUsingGateway
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return ErrRPCXNoReturnURL
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}
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heartRateCh, cancel, err := i.dev.WatchHeartRate()
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@ -168,7 +172,7 @@ func (i *ITD) WatchHeartRate(ctx context.Context, _ none, out *string) error {
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}
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// Send response to connection if no done signal received
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i.srv.SendMessage(clientConn, id, "HeartRateSample", nil, data)
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msgSender.SendMessage(id, "HeartRateSample", nil, data)
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}
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}
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}()
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@ -184,11 +188,11 @@ func (i *ITD) BatteryLevel(_ context.Context, _ none, out *uint8) error {
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}
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func (i *ITD) WatchBatteryLevel(ctx context.Context, _ none, out *string) error {
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// Get client's connection
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clientConn, ok := ctx.Value(server.RemoteConnContextKey).(net.Conn)
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// Get client message sender
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msgSender, ok := getMsgSender(ctx, i.srv)
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// If user is using gateway, the client connection will not be available
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if !ok {
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return ErrRPCXUsingGateway
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return ErrRPCXNoReturnURL
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}
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battLevelCh, cancel, err := i.dev.WatchBatteryLevel()
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@ -215,7 +219,7 @@ func (i *ITD) WatchBatteryLevel(ctx context.Context, _ none, out *string) error
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}
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// Send response to connection if no done signal received
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i.srv.SendMessage(clientConn, id, "BatteryLevelSample", nil, data)
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msgSender.SendMessage(id, "BatteryLevelSample", nil, data)
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}
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}
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}()
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@ -231,11 +235,11 @@ func (i *ITD) Motion(_ context.Context, _ none, out *infinitime.MotionValues) er
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}
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func (i *ITD) WatchMotion(ctx context.Context, _ none, out *string) error {
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// Get client's connection
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clientConn, ok := ctx.Value(server.RemoteConnContextKey).(net.Conn)
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// Get client message sender
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msgSender, ok := getMsgSender(ctx, i.srv)
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// If user is using gateway, the client connection will not be available
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if !ok {
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return ErrRPCXUsingGateway
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return ErrRPCXNoReturnURL
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}
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motionValsCh, cancel, err := i.dev.WatchMotion()
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@ -262,7 +266,7 @@ func (i *ITD) WatchMotion(ctx context.Context, _ none, out *string) error {
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}
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// Send response to connection if no done signal received
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i.srv.SendMessage(clientConn, id, "MotionSample", nil, data)
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msgSender.SendMessage(id, "MotionSample", nil, data)
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}
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}
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}()
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@ -278,11 +282,11 @@ func (i *ITD) StepCount(_ context.Context, _ none, out *uint32) error {
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}
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func (i *ITD) WatchStepCount(ctx context.Context, _ none, out *string) error {
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// Get client's connection
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clientConn, ok := ctx.Value(server.RemoteConnContextKey).(net.Conn)
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// Get client message sender
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msgSender, ok := getMsgSender(ctx, i.srv)
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// If user is using gateway, the client connection will not be available
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if !ok {
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return ErrRPCXUsingGateway
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return ErrRPCXNoReturnURL
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}
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stepCountCh, cancel, err := i.dev.WatchStepCount()
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@ -309,7 +313,7 @@ func (i *ITD) WatchStepCount(ctx context.Context, _ none, out *string) error {
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}
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// Send response to connection if no done signal received
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i.srv.SendMessage(clientConn, id, "StepCountSample", nil, data)
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msgSender.SendMessage(id, "StepCountSample", nil, data)
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}
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}
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}()
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@ -386,8 +390,8 @@ func (i *ITD) FirmwareUpgrade(ctx context.Context, reqData api.FwUpgradeData, ou
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id := uuid.New().String()
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*out = id
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// Get client's connection
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clientConn, ok := ctx.Value(server.RemoteConnContextKey).(net.Conn)
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// Get client message sender
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msgSender, ok := getMsgSender(ctx, i.srv)
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// If user is using gateway, the client connection will not be available
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if ok {
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go func() {
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@ -399,11 +403,11 @@ func (i *ITD) FirmwareUpgrade(ctx context.Context, reqData api.FwUpgradeData, ou
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continue
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}
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i.srv.SendMessage(clientConn, id, "DFUProgress", nil, data)
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msgSender.SendMessage(id, "DFUProgress", nil, data)
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}
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firmwareUpdating = false
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i.srv.SendMessage(clientConn, id, "Done", nil, nil)
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msgSender.SendMessage(id, "Done", nil, nil)
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}()
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}
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@ -506,8 +510,8 @@ func (fs *FS) Upload(ctx context.Context, paths [2]string, out *string) error {
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id := uuid.New().String()
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*out = id
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// Get client's connection
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clientConn, ok := ctx.Value(server.RemoteConnContextKey).(net.Conn)
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// Get client message sender
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msgSender, ok := getMsgSender(ctx, fs.srv)
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// If user is using gateway, the client connection will not be available
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if ok {
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go func() {
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@ -522,10 +526,10 @@ func (fs *FS) Upload(ctx context.Context, paths [2]string, out *string) error {
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continue
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}
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fs.srv.SendMessage(clientConn, id, "FSProgress", nil, data)
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msgSender.SendMessage(id, "FSProgress", nil, data)
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}
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fs.srv.SendMessage(clientConn, id, "Done", nil, nil)
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msgSender.SendMessage(id, "Done", nil, nil)
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}()
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}
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@ -554,8 +558,8 @@ func (fs *FS) Download(ctx context.Context, paths [2]string, out *string) error
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id := uuid.New().String()
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*out = id
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// Get client's connection
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clientConn, ok := ctx.Value(server.RemoteConnContextKey).(net.Conn)
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// Get client message sender
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msgSender, ok := getMsgSender(ctx, fs.srv)
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// If user is using gateway, the client connection will not be available
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if ok {
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go func() {
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@ -570,10 +574,10 @@ func (fs *FS) Download(ctx context.Context, paths [2]string, out *string) error
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continue
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}
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fs.srv.SendMessage(clientConn, id, "FSProgress", nil, data)
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msgSender.SendMessage(id, "FSProgress", nil, data)
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}
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fs.srv.SendMessage(clientConn, id, "Done", nil, nil)
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msgSender.SendMessage(id, "Done", nil, nil)
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localFile.Close()
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remoteFile.Close()
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}()
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@ -608,3 +612,66 @@ func cleanPaths(paths []string) []string {
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}
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return paths
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}
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func getMsgSender(ctx context.Context, srv *server.Server) (MessageSender, bool) {
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// Get client message sender
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clientConn, ok := ctx.Value(server.RemoteConnContextKey).(net.Conn)
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// If the connection exists, use rpcMsgSender
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if ok {
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return &rpcMsgSender{srv, clientConn}, true
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} else {
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// Get metadata if it exists
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metadata, ok := ctx.Value(share.ReqMetaDataKey).(map[string]string)
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if !ok {
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return nil, false
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}
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// Get returnURL field from metadata if it exists
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returnURL, ok := metadata["returnURL"]
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if !ok {
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return nil, false
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}
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// Use httpMsgSender
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return &httpMsgSender{returnURL}, true
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}
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}
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type MessageSender interface {
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SendMessage(servicePath, serviceMethod string, metadata map[string]string, data []byte) error
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}
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type rpcMsgSender struct {
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srv *server.Server
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conn net.Conn
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}
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func (r *rpcMsgSender) SendMessage(servicePath, serviceMethod string, metadata map[string]string, data []byte) error {
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return r.srv.SendMessage(r.conn, servicePath, serviceMethod, metadata, data)
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}
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type httpMsgSender struct {
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url string
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}
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func (h *httpMsgSender) SendMessage(servicePath, serviceMethod string, metadata map[string]string, data []byte) error {
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req, err := http.NewRequest(http.MethodPost, h.url, bytes.NewReader(data))
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if err != nil {
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return err
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}
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req.Header.Set("X-RPCX-ServicePath", servicePath)
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req.Header.Set("X-RPCX-ServiceMethod", serviceMethod)
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query := url.Values{}
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for k, v := range metadata {
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query.Set(k, v)
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}
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req.Header.Set("X-RPCX-Meta", query.Encode())
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res, err := http.DefaultClient.Do(req)
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if err != nil {
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return err
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}
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return res.Body.Close()
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}
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